ROTHENBERGER ROREC PRO v.1 - Manual (Page 14)

13 DEUTSCH 13 ENGLISH
WARNING
GENERAL SAFETY GUIDELINES
p) The power must be off when switching the recovery valve.
q) This unit has a low-pressure protector. The unit will shut-off with Green indicator lights on, if internal
pressure is below --5 ~ 14 inHg. (See Exploded Drawing 16) Input pressure must be higher than
0.8Kgf/cm2 , in order to restart it. Then press start button to start. (See Exploded Drawing 16)
r) If the tank pressure exceeds 21 bars, use the storage tank cooling method to reduce the tank
pressure. (See Page 20 cooling method)
s) To maximize recovery rates, use the shortest possible length of 3/8" or larger hose. A hose no longer
than 0.9 meter is recommended. When recovering large amounts of liquid, use the Liquid Push/Pull
method. (See page 19 “System Push/Pull method”)
t) After recovering, make sure there’s no refrigerant left in the unit. Read the Self-Purging Method
carefully. Liquid refrigerant remaining may expand and destroy the components.
u) If the unit is to be stored or not used for any length of time, we recommend that it is completely
evacuated of any residual refrigerant and purged with dry nitrogen.
v) To avoid refrigerant losing, we suggest to use a hose with a stop valve.
SAFETY
!